<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>视频上传</title>
</head>
<body>
    <h1>选择视频上传</h1>
    <form action="/upload" method="POST" enctype="multipart/form-data">
       <p>每间隔多少帧取一张图片： <input type="input" name="interval"  value="10" placeholder="每间隔多少帧取一张图片">帧
       </p> 
       <p>视频：<input type="file" name="video" accept="video/*"></p> 
        <button type="submit">上传</button>
    </form>
</body>
</html>
